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<html lang="en">

<head>
  <meta charset="UTF-8">
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  <title>Document</title>
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<body>
  <script>
    var obj = {
      age: 18,
      nature: ['smart', 'good'],
      names: {
        name1: 'fx',
        name2: 'xka'
      },
      love: function () {
        console.log('fx is a great girl')
      }
    }
    var newObj = Object.assign({}, obj);
    var newObj2 = obj
    console.log(newObj,obj);
  </script>
</body>

</html>